/*
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 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package lookMessage;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.swing.JOptionPane;
import java.sql.*;
import java.util.ArrayList;
import javax.servlet.http.HttpSession;
import javax.websocket.Session;
import loginRegister.LoginBean;

/**
 *
 * @author DELL
 */
public class UpdateMessageServlet extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        try (PrintWriter out = response.getWriter()) {
            /* TODO output your page here. You may use following sample code. */
            out.println("<!DOCTYPE html>");
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet UpdateMessageServlet</title>");
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Servlet UpdateMessageServlet at " + request.getContextPath() + "</h1>");
            out.println("</body>");
            out.println("</html>");
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    public void wrong1() {

        String msg = "消息提示";
        String title = "不能有空，请输入完整！";
        int type = JOptionPane.YES_NO_CANCEL_OPTION;
        JOptionPane.showMessageDialog(null, msg, title, type);

    }

    public void right() {

        String msg = "消息提示";
        String title = "修改信息成功！";
        int type = JOptionPane.YES_NO_CANCEL_OPTION;
        JOptionPane.showMessageDialog(null, msg, title, type);

    }

    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        String name = new String(request.getParameter("name").getBytes("ISO-8859-1"), "UTF-8");
        String nation = new String(request.getParameter("nation").getBytes("ISO-8859-1"), "UTF-8");
        String edu = new String(request.getParameter("edu").getBytes("ISO-8859-1"), "UTF-8");
        String phone = new String(request.getParameter("phone").getBytes("ISO-8859-1"), "UTF-8");
        String email = new String(request.getParameter("email").getBytes("ISO-8859-1"), "UTF-8");
        if (name.equals("") || phone.equals("") || email.equals("")) {

            wrong1();
            response.sendRedirect("http://localhost:8081/PersonInforMSys/lookMessage/updateMessage.jsp");
        } else {
            try {
                Connection con = null;
                java.sql.Statement stmt = null;
                ResultSet rs = null;
                Class.forName("com.mysql.jdbc.Driver");
                
             
                String url = "jdbc:mysql://localhost:3306/person";

                con = DriverManager.getConnection(url, "skyline", "739349");

                stmt = con.createStatement();

                String userName = null;
                HttpSession session = request.getSession();
                
                ArrayList login = (ArrayList) session.getAttribute("login");
                 
                if (login == null || login.size()== 0) {
                   
                    response.sendRedirect("http://localhost:8081/PersonInforMSys/login.jsp" );
                } else {
                    for (int i = login.size() - 1; i >= 0; i--) {
                          
                        LoginBean mbean = (LoginBean) login.get(i);
                        userName = mbean.getUserName();
                        log(userName);

                    }
                }
               
                

                
                String sql = "update  user   set name='" + name + "',nation='" + nation + "',edu='" + edu + "',phone='" + phone + "',email='"+email+"' where userName='" + userName + "'";
                   
          
                    stmt.executeUpdate(sql);


                  
                String sql2 = "select * from user where userName='" + userName + "'";
                log(userName);
                rs = stmt.executeQuery(sql2);
               
                LookMessageBean mm = new LookMessageBean();
                  
                while (rs.next()) {
                    
                    mm.setName(rs.getString("name"));
                    mm.setSex(rs.getString("sex"));
                    mm.setBirth(rs.getString("birth"));
                    mm.setNation(rs.getString("nation"));

                    mm.setEdu(rs.getString("edu"));
                    mm.setPhone(rs.getString("phone"));
                    mm.setAddr(rs.getString("addr"));
                    mm.setEmail(rs.getString("email"));
                    
               
              
                }

                ArrayList al = null;
                al=new ArrayList();
                al.add(mm);
                session.setAttribute("wordlist", al);
                rs.close();
                stmt.close();
                con.close();
                right();
                log("log7:dfsdaffffffffffffffffff");
                response.sendRedirect("http://localhost:8081/PersonInforMSys/lookMessage/lookMessage.jsp");

            } catch (Exception e) {
            }

        }

    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        doGet(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
